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A187899 Rank transform of the sequence floor((2-sqrt(2))n); complement of A187900. 2
1, 2, 3, 5, 6, 8, 10, 11, 12, 13, 15, 17, 18, 19, 20, 22, 23, 24, 26, 27, 29, 30, 32, 34, 35, 36, 37, 39, 40, 41, 43, 44, 46, 47, 49, 51, 52, 53, 54, 56, 58, 59, 61, 62, 63, 64, 66, 68, 69, 70, 71, 73, 75, 76, 77, 78, 80, 81, 82, 84, 85, 87, 88, 90, 92, 93, 94, 95, 97, 99, 100, 102, 103, 104, 105, 107, 109, 110, 111, 112, 114, 116, 117, 118, 119, 121, 122, 123, 125, 126, 128, 129, 131, 133 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A187224.

LINKS

Table of n, a(n) for n=1..94.

MATHEMATICA

r=2-2^(1/2);

seqA = Table[Floor[r*n], {n, 1, 220}]

seqB = Table[n, {n, 1, 220}];  (*A000027*)

jointRank[{seqA_,

   seqB_}] := {Flatten@Position[#1, {_, 1}],

    Flatten@Position[#1, {_, 2}]} &[

  Sort@Flatten[{{#1, 1} & /@ seqA, {#1, 2} & /@ seqB}, 1]];

limseqU =

FixedPoint[jointRank[{seqA, #1[[1]]}] &,

   jointRank[{seqA, seqB}]][[1]] (*A187899*)

Complement[Range[Length[seqA]], limseqU]  (*A187900*)

(*by Peter J. C. Moses, Mar 13 2011*)

CROSSREFS

Cf. A187224, A187900.

Sequence in context: A187897 A187319 A095976 * A024609 A167056 A131614

Adjacent sequences:  A187896 A187897 A187898 * A187900 A187901 A187902

KEYWORD

nonn

AUTHOR

Clark Kimberling, Mar 15 2011

STATUS

approved

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Last modified October 24 09:38 EDT 2021. Contains 348225 sequences. (Running on oeis4.)